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Canon EF 24-70mm f/2.8L II USM — Prime/zoom
Canon

Canon EF 24-70mm f/2.8L II USM

Prime/zoom

91
/ 100
From $1,899
VS
Canon EF 24-70mm f/2.8L II USM wins by 4
Tamron 50-400mm f/4.5-6.3 Di III VC VXD — Prime/zoom
Tamron

Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Prime/zoom

87
/ 100
From $1,299
Specdex verdict

Canon EF 24-70mm f/2.8L II USM takes it — here’s why.

In our weighted Specdex score, Canon EF 24-70mm f/2.8L II USM lands at 91 and Tamron 50-400mm f/4.5-6.3 Di III VC VXD at 87. That puts Canon EF 24-70mm f/2.8L II USM ahead by 4 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Canon EF 24-70mm f/2.8L II USM if…

  • ✓Proven optical formula
  • ✓Weather-sealing (L/GM/S)
  • ✓Strong resale

Pick Tamron 50-400mm f/4.5-6.3 Di III VC VXD if…

  • ✓Proven optical formula
  • ✓Weather-sealing (L/GM/S)
  • ✓Strong resale
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Build

Tie

Compared on the build sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Sharpness

Canon EF 24-70mm f/2.8L II USM

Compared on the sharpness sub-score

Canon EF 24-70mm f/2.8L II USM leads on sharpness (91 vs 87).

Autofocus

Canon EF 24-70mm f/2.8L II USM

Compared on the autofocus sub-score

Canon EF 24-70mm f/2.8L II USM leads on af (87 vs 83).

Value for money

Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Specdex score per dollar at MSRP

Tamron 50-400mm f/4.5-6.3 Di III VC VXD more score per dollar ($1,299 vs $1,899).

Canon EF 24-70mm f/2.8L II USM 91
vs
87 Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Score breakdown

Canon EF 24-70mm f/2.8L II USM
91
sharpness 91
af 87
build 90
value 86
Tamron 50-400mm f/4.5-6.3 Di III VC VXD
87
sharpness 87
af 83
build 90
value 86

Specs side-by-side

Canon EF 24-70mm f/2.8L II USM versus Tamron 50-400mm f/4.5-6.3 Di III VC VXD — full spec comparison
Spec Canon EF 24-70mm f/2.8L II USM Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Canon EF 24-70mm f/2.8L II USM

Pros
  • +Proven optical formula
  • +Weather-sealing (L/GM/S)
  • +Strong resale
Cons
  • −Mount-specific
  • −Older AF motor on some
  • −Heavier than modern counterparts

Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Pros
  • +Proven optical formula
  • +Weather-sealing (L/GM/S)
  • +Strong resale
Cons
  • −Mount-specific
  • −Older AF motor on some
  • −Heavier than modern counterparts

FAQ: Canon EF 24-70mm f/2.8L II USM vs Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Which is better, Canon EF 24-70mm f/2.8L II USM or Tamron 50-400mm f/4.5-6.3 Di III VC VXD? +

Canon EF 24-70mm f/2.8L II USM scores 91 on our weighted rubric — ahead by 4. Your best pick depends on the sub-scores above.

Is Canon EF 24-70mm f/2.8L II USM worth the price? +

At $1,899, Canon EF 24-70mm f/2.8L II USM delivers a Specdex score of 91 — strongest in sharpness.

Is Tamron 50-400mm f/4.5-6.3 Di III VC VXD worth the price? +

At $1,299, Tamron 50-400mm f/4.5-6.3 Di III VC VXD delivers a Specdex score of 87 — strongest in build.

Does Canon EF 24-70mm f/2.8L II USM or Tamron 50-400mm f/4.5-6.3 Di III VC VXD last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.

Which is better for sharpness, Canon EF 24-70mm f/2.8L II USM or Tamron 50-400mm f/4.5-6.3 Di III VC VXD? +

Canon EF 24-70mm f/2.8L II USM — leads on sharpness (91 vs 87). Compared on the sharpness sub-score.

Which is better for autofocus, Canon EF 24-70mm f/2.8L II USM or Tamron 50-400mm f/4.5-6.3 Di III VC VXD? +

Canon EF 24-70mm f/2.8L II USM — leads on af (87 vs 83). Compared on the autofocus sub-score.